<template>
    <div class="body_all">
        <!-- 顶部 -->
        <mt-header fixed title="固定在顶部">
            <span slot="left" @click="goback" v-show="flag">
            <mt-button icon="back">返回</mt-button>
            </span>
        </mt-header>
		<!-- 中间显示内容 -->

		<!-- 增加过度效果 -->
		<transition>
		 	<router-view></router-view>
		</transition>
       

        <!-- 底部区域 -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-lkx" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-lkx" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-lkx" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{$store.getters.getGoodsCountAndAmount.count}}</span></span>
                <!-- 之前使用的是{{$store.getters.getAllCount}} -->
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-lkx" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
    </div>
</template>
<script>
export default {
    data(){
        return{
            flag:false
        }
    },
    methods:{
        goback(){
            // 点击后退
            this.$router.go(-1)
        }
    },
    watch:{
        //兼容路由地址：如果是首页不显示返回 按钮！
        '$route.path':function(newVal){
            if(newVal==='/home'){
                this.flag=false
            }
            else{
                this.flag=true
            }
        }
    },
    created(){
      this.flag=this.$route.path==='/home'? false:true;
    }
}
</script>
<style scoped>
.mint-header{
    z-index: 99;
}
.body_all{
    background: #fff;
    padding: 40px 0 50px;

}
/* 每个tabbar组件的切换效果 */
.v-enter{
	opacity: 0;
    transform: translateX(100%);
}
.v-leave-to{
    opacity: 0;
    transform: translateX(-100%);
	position: absolute;	
	
}
.v-enter-acitve,
.v-leave-active{
    transition: all 0.5s ease;
}

/* 改类名解决tabbar无法切换的问题 修改与tab-item类相关的*/


.mui-bar-tab .mui-tab-item-lkx {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}
.mui-bar-tab .mui-tab-item-lkx .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item-lkx .mui-icon ~ .mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}
.mui-bar-tab .router-link-active{
	color: #26a2ff;
}
</style>